Build with Square

Create your perfect commerce solution on Square’s platform.

A complete payments ecosystem

Square offers an end-to-end solution for offline and online sales, with fast deposits and cutting-edge software and hardware that’s also affordable.

Take payments online securely

Square makes it simple to sell anywhere, with strong security and a system that makes PCI compliance easy.

Integrate with tools you already use

Square syncs with partner software for any system that you have in place.

Trusted by millions of businesses

Merchants around the world run their business with Square because it’s simple, powerful, and reliable.

Build with Square Payments APIs.

Square lets developers build an ecosystem for businesses to seamlessly accept payments online, in store, or on the go. With our Square Payments APIs (E-commerce API and Register API), you can create customizable solutions that work for any size business.

Getting started with APIs

View the documentation to see if the Square APIs are the right solution for your business.